Delete bundled copy of NSS and replace with README.

nss/lib/base/libc.c

-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-/*
- * libc.c
- *
- * This file contains our wrappers/reimplementations for "standard"
- * libc functions.  Things like "memcpy."  We add to this as we need
- * it.  Oh, and let's keep it in alphabetical order, should it ever
- * get large.  Most string/character stuff should be in utf8.c, not
- * here.  This file (and maybe utf8.c) should be the only ones in
- * NSS to include files with angle brackets.
- */
-
-#ifndef BASE_H
-#include "base.h"
-#endif /* BASE_H */
-
-#include <string.h> /* memcpy, memset */
-
-/*
- * nsslibc_memcpy
- * nsslibc_memset
- * nsslibc_offsetof
- * nsslibc_memequal
- */
-
-/*
- * nsslibc_memcpy
- *
- * Errors:
- *  NSS_ERROR_INVALID_POINTER
- *
- * Return value:
- *  NULL on error
- *  The destination pointer on success
- */
-
-NSS_IMPLEMENT void *
-nsslibc_memcpy(void *dest, const void *source, PRUint32 n)
-{
-#ifdef NSSDEBUG
-    if (((void *)NULL == dest) || ((const void *)NULL == source)) {
-        nss_SetError(NSS_ERROR_INVALID_POINTER);
-        return (void *)NULL;
-    }
-#endif /* NSSDEBUG */
-
-    return memcpy(dest, source, (size_t)n);
-}
-
-/*
- * nsslibc_memset
- *
- * Errors:
- *  NSS_ERROR_INVALID_POINTER
- *
- * Return value:
- *  NULL on error
- *  The destination pointer on success
- */
-
-NSS_IMPLEMENT void *
-nsslibc_memset(void *dest, PRUint8 byte, PRUint32 n)
-{
-#ifdef NSSDEBUG
-    if (((void *)NULL == dest)) {
-        nss_SetError(NSS_ERROR_INVALID_POINTER);
-        return (void *)NULL;
-    }
-#endif /* NSSDEBUG */
-
-    return memset(dest, (int)byte, (size_t)n);
-}
-
-/*
- * nsslibc_memequal
- *
- * Errors:
- *  NSS_ERROR_INVALID_POINTER
- *
- * Return value:
- *  PR_TRUE if they match
- *  PR_FALSE if they don't
- *  PR_FALSE upon error
- */
-
-NSS_IMPLEMENT PRBool
-nsslibc_memequal(const void *a, const void *b, PRUint32 len,
-                 PRStatus *statusOpt)
-{
-#ifdef NSSDEBUG
-    if ((((void *)NULL == a) || ((void *)NULL == b))) {
-        nss_SetError(NSS_ERROR_INVALID_POINTER);
-        if ((PRStatus *)NULL != statusOpt) {
-            *statusOpt = PR_FAILURE;
-        }
-        return PR_FALSE;
-    }
-#endif /* NSSDEBUG */
-
-    if ((PRStatus *)NULL != statusOpt) {
-        *statusOpt = PR_SUCCESS;
-    }
-
-    if (0 == memcmp(a, b, len)) {
-        return PR_TRUE;
-    } else {
-        return PR_FALSE;
-    }
-}
-
-/*
- * nsslibc_memcmp
- */
-
-NSS_IMPLEMENT PRInt32
-nsslibc_memcmp(const void *a, const void *b, PRUint32 len, PRStatus *statusOpt)
-{
-    int v;
-
-#ifdef NSSDEBUG
-    if ((((void *)NULL == a) || ((void *)NULL == b))) {
-        nss_SetError(NSS_ERROR_INVALID_POINTER);
-        if ((PRStatus *)NULL != statusOpt) {
-            *statusOpt = PR_FAILURE;
-        }
-        return -2;
-    }
-#endif /* NSSDEBUG */
-
-    if ((PRStatus *)NULL != statusOpt) {
-        *statusOpt = PR_SUCCESS;
-    }
-
-    v = memcmp(a, b, len);
-    return (PRInt32)v;
-}
-
-/*
- * offsetof is a preprocessor definition
- */